/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */


package com.alibaba.apiopenplatform.controller;

import com.alibaba.apiopenplatform.dto.result.AuthResult;
import com.alibaba.apiopenplatform.dto.result.IdpResult;
import com.alibaba.apiopenplatform.service.OidcService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@Slf4j
@RestController
@RequestMapping("/developers/oidc")
@RequiredArgsConstructor
public class OidcController {

    private final OidcService oidcService;

    @GetMapping("/authorize")
    public void authorize(@RequestParam String provider,
                          @RequestParam(defaultValue = "/api/v1") String apiPrefix,
                          HttpServletRequest request,
                          HttpServletResponse response) throws IOException {
        String authUrl = oidcService.buildAuthorizationUrl(provider, apiPrefix, request);

        log.info("Redirecting to OIDC authorization URL: {}", authUrl);
        response.sendRedirect(authUrl);
    }

    @GetMapping("/callback")
    public AuthResult callback(@RequestParam String code,
                               @RequestParam String state,
                               HttpServletRequest request,
                               HttpServletResponse response) {
        return oidcService.handleCallback(code, state, request, response);
    }

    @GetMapping("/providers")
    public List<IdpResult> getProviders() {
        return oidcService.getAvailableProviders();
    }
}
